Lens



FIG. 1 is a front perspective view of the lens;

FIG. 2 is a rear perspective view of the lens;

FIG. 3 is a front elevational view of the lens;

FIG. 4 is a rear elevational view of the lens;

FIG. 5 is a right elevational view of the lens;

FIG. 6 is a left elevational view of the lens;

FIG. 7 is a top plan view of the lens;

FIG. 8 is a bottom plan view of the lens; and,

FIG. 9 is cross-sectional view of the lens. 

CLAIM The ornamental design for a lens, as shown and described. 